bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Björn Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors]

I noticed when investigating why drag and drop wasn't working
in my setup that pgtk doesn't define `x-begin-drag' but defines
functions for drag and drop support.
That x-begin-drag isn't present breaks `dnd-begin-text-drag` and friend.

1. Build Emacs with at least --with-pgtk
2. Call `dnd-begin-text-drag'
3. Error

In GNU Emacs 30.0.50 (build 1, x86_64-suse-linux-gnu, GTK+ Version
3.24.39, cairo version 1.18.0)
System Description: openSUSE Tumbleweed

Configured using:
 'configure --disable-build-details --without-pop --with-mailutils
 --without-hesiod --with-gameuser=:games --with-kerberos
 --with-kerberos5 --with-file-notification=inotify --with-modules
 --enable-autodepend --prefix=/usr --mandir=/usr/share/man
 --infodir=/usr/share/info --datadir=/usr/share --localstatedir=/var
 --sharedstatedir=/var/lib --libexecdir=/usr/libexec
 --with-file-notification=yes --libdir=/usr/lib64
 --with-native-compilation=aot
 --enable-locallisppath=/usr/share/emacs/30.0.50/site-lisp:/usr/share/emacs/site-lisp
 --with-x --with-xim --with-sound --with-xpm --with-jpeg --with-tiff
 --with-gif --with-png --with-rsvg --with-dbus --with-xft --without-gpm
 --with-tree-sitter --with-pgtk --with-toolkit-scroll-bars
 --x-includes=/usr/include --x-libraries=/usr/lib64 --with-libotf
 --with-m17n-flt --with-cairo --with-xwidgets --build=x86_64-suse-linux
 --with-dumping=pdumper 'CFLAGS=-O2 -Wall -U_FORTIFY_SOURCE
 -D_FORTIFY_SOURCE=3 -fstack-protector-strong -funwind-tables
 -fasynchronous-unwind-tables -fstack-clash-protection
 -Werror=return-type -flto=auto -g -D_GNU_SOURCE
 -DGDK_DISABLE_DEPRECATION_WARNINGS -DGLIB_DISABLE_DEPRECATION_WARNINGS
 -pipe -Wno-pointer-sign -Wno-unused-variable -Wno-unused-label
 -fno-optimize-sibling-calls -DPDMP_BASE='\''"emacs-gtk"'\'''
 LDFLAGS=-Wl,-O2'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY
INOTIFY PDUMPER PGTK PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XIM XWIDGETS GTK3 ZLIB

Important settings:
  value of $LC_MONETARY: fi_FI.UTF-8
  value of $LC_NUMERIC: POSIX
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: @im=local
  locale-coding-system: utf-8-unix

Major mode: Org

Minor modes in effect:
  dap-tooltip-mode: t
  dap-ui-many-windows-mode: t
  dap-ui-controls-mode: t
  dap-ui-mode: t
  dap-auto-configure-mode: t
  dap-mode: t
  lsp-treemacs-sync-mode: t
  circe-lagmon-mode: t
  treemacs-icons-dired-mode: t
  treemacs-filewatch-mode: t
  treemacs-git-mode: t
  treemacs-fringe-indicator-mode: t
  magit-wip-initial-backup-mode: t
  magit-wip-before-change-mode: t
  magit-wip-after-apply-mode: t
  magit-wip-after-save-mode: t
  magit-wip-mode: t
  magit-auto-revert-mode: t
  global-atomic-chrome-edit-mode: t
  minions-mode: t
  back-button-mode: t
  recentf-mode: t
  global-auto-revert-mode: t
  savehist-mode: t
  org-edit-indirect-mode: t
  emms-playing-time-display-mode: t
  emms-playing-time-mode: t
  gnus-desktop-notify-mode: t
  tracking-mode: t
  org-modern-mode: t
  org-super-agenda-mode: t
  org-appear-mode: t
  ws-butler-mode: t
  selected-minor-mode: t
  jinx-mode: t
  org-cdlatex-mode: t
  global-git-commit-mode: t
  projectile-mode: t
  global-company-mode: t
  company-mode: t
  electric-pair-mode: t
  editorconfig-mode: t
  frames-only-mode: t
  windmove-mode: t
  marginalia-mode: t
  which-key-mode: t
  dired-async-mode: t
  helm-mode: t
  helm-minibuffer-history-mode: t
  global-so-long-mode: t
  change-cursor-mode: t
  doom-modeline-mode: t
  mode-icons-mode: t
  global-emojify-mode: t
  emojify-mode: t
  server-mode: t
  helm-autoresize-mode: t
  desktop-save-mode: t
  save-place-mode: t
  delete-selection-mode: t
  override-global-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  undelete-frame-mode: t
  minibuffer-regexp-mode: t
  line-number-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-koma-letter hides /home/bidar/.local/private/etc/emacs/lib/lisp/ox-koma-letter
/home/bidar/.local/private/etc/emacs/lib/org-contrib/lisp/ox-groff hides /home/bidar/.local/private/etc/emacs/lib/lisp/ox-groff
/home/bidar/.local/private/etc/emacs/lib/vim-modeline/vim-modeline hides /home/bidar/.local/private/etc/emacs/lib/lisp/vim-modeline
/home/bidar/.local/private/etc/emacs/lib/lisp/htmlize hides /home/bidar/.local/private/etc/emacs/lib/htmlize/htmlize
/home/bidar/.local/private/etc/emacs/lib/lisp/cursor-chg hides /home/bidar/.local/private/etc/emacs/lib/cursor-chg/cursor-chg
/home/bidar/.local/private/etc/emacs/lib/compat/compat hides /usr/share/emacs/site-lisp/compat
/home/bidar/.local/private/etc/emacs/lib/compat/compat-29 hides /usr/share/emacs/site-lisp/compat-29
/home/bidar/.local/private/etc/emacs/lib/compat/compat-28 hides /usr/share/emacs/site-lisp/compat-28
/home/bidar/.local/private/etc/emacs/lib/compat/compat-27 hides /usr/share/emacs/site-lisp/compat-27
/home/bidar/.local/private/etc/emacs/lib/compat/compat-26 hides /usr/share/emacs/site-lisp/compat-26
/home/bidar/.local/private/etc/emacs/lib/compat/compat-25 hides /usr/share/emacs/site-lisp/compat-25
/home/bidar/.local/private/etc/emacs/lib/cmake-mode/cmake-mode hides /usr/share/emacs/site-lisp/cmake-mode
/home/bidar/.local/private/etc/emacs/lib/transient/lisp/transient hides /usr/share/emacs/30.0.50/lisp/transient
/home/bidar/.local/private/etc/emacs/lib/use-package/bind-key hides /usr/share/emacs/30.0.50/lisp/bind-key
/home/bidar/.local/private/etc/emacs/lib/modus-themes/theme-loaddefs hides /usr/share/emacs/30.0.50/lisp/theme-loaddefs
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package hides /usr/share/emacs/30.0.50/lisp/use-package/use-package
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-core hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-core
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-bind-key hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-bind-key
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-lint hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-lint
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-jump hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-jump
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-ensure hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-ensure
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-ensure-system-package hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-ensure-system-package
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-diminish hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-diminish
/home/bidar/.local/private/etc/emacs/lib/use-package/use-package-delight hides /usr/share/emacs/30.0.50/lisp/use-package/use-package-delight
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-python hides /usr/share/emacs/30.0.50/lisp/org/ob-python
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-lua hides /usr/share/emacs/30.0.50/lisp/org/ob-lua
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org hides /usr/share/emacs/30.0.50/lisp/org/org
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-colview hides /usr/share/emacs/30.0.50/lisp/org/org-colview
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-agenda hides /usr/share/emacs/30.0.50/lisp/org/org-agenda
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox hides /usr/share/emacs/30.0.50/lisp/org/ox
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-texinfo hides /usr/share/emacs/30.0.50/lisp/org/ox-texinfo
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-publish hides /usr/share/emacs/30.0.50/lisp/org/ox-publish
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-org hides /usr/share/emacs/30.0.50/lisp/org/ox-org
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-odt hides /usr/share/emacs/30.0.50/lisp/org/ox-odt
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-md hides /usr/share/emacs/30.0.50/lisp/org/ox-md
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-man hides /usr/share/emacs/30.0.50/lisp/org/ox-man
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-latex hides /usr/share/emacs/30.0.50/lisp/org/ox-latex
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-koma-letter hides /usr/share/emacs/30.0.50/lisp/org/ox-koma-letter
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-icalendar hides /usr/share/emacs/30.0.50/lisp/org/ox-icalendar
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-html hides /usr/share/emacs/30.0.50/lisp/org/ox-html
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-beamer hides /usr/share/emacs/30.0.50/lisp/org/ox-beamer
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ox-ascii hides /usr/share/emacs/30.0.50/lisp/org/ox-ascii
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-version hides /usr/share/emacs/30.0.50/lisp/org/org-version
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-timer hides /usr/share/emacs/30.0.50/lisp/org/org-timer
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-tempo hides /usr/share/emacs/30.0.50/lisp/org/org-tempo
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-table hides /usr/share/emacs/30.0.50/lisp/org/org-table
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-src hides /usr/share/emacs/30.0.50/lisp/org/org-src
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-refile hides /usr/share/emacs/30.0.50/lisp/org/org-refile
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-protocol hides /usr/share/emacs/30.0.50/lisp/org/org-protocol
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-plot hides /usr/share/emacs/30.0.50/lisp/org/org-plot
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-persist hides /usr/share/emacs/30.0.50/lisp/org/org-persist
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-pcomplete hides /usr/share/emacs/30.0.50/lisp/org/org-pcomplete
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-num hides /usr/share/emacs/30.0.50/lisp/org/org-num
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-mouse hides /usr/share/emacs/30.0.50/lisp/org/org-mouse
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-mobile hides /usr/share/emacs/30.0.50/lisp/org/org-mobile
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-macro hides /usr/share/emacs/30.0.50/lisp/org/org-macro
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-list hides /usr/share/emacs/30.0.50/lisp/org/org-list
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-lint hides /usr/share/emacs/30.0.50/lisp/org/org-lint
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-keys hides /usr/share/emacs/30.0.50/lisp/org/org-keys
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-inlinetask hides /usr/share/emacs/30.0.50/lisp/org/org-inlinetask
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-indent hides /usr/share/emacs/30.0.50/lisp/org/org-indent
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-id hides /usr/share/emacs/30.0.50/lisp/org/org-id
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-habit hides /usr/share/emacs/30.0.50/lisp/org/org-habit
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-goto hides /usr/share/emacs/30.0.50/lisp/org/org-goto
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-footnote hides /usr/share/emacs/30.0.50/lisp/org/org-footnote
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-fold hides /usr/share/emacs/30.0.50/lisp/org/org-fold
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-fold-core hides /usr/share/emacs/30.0.50/lisp/org/org-fold-core
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-feed hides /usr/share/emacs/30.0.50/lisp/org/org-feed
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-faces hides /usr/share/emacs/30.0.50/lisp/org/org-faces
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-entities hides /usr/share/emacs/30.0.50/lisp/org/org-entities
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-element hides /usr/share/emacs/30.0.50/lisp/org/org-element
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-duration hides /usr/share/emacs/30.0.50/lisp/org/org-duration
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-datetree hides /usr/share/emacs/30.0.50/lisp/org/org-datetree
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-cycle hides /usr/share/emacs/30.0.50/lisp/org/org-cycle
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-ctags hides /usr/share/emacs/30.0.50/lisp/org/org-ctags
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/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-clock hides /usr/share/emacs/30.0.50/lisp/org/org-clock
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-capture hides /usr/share/emacs/30.0.50/lisp/org/org-capture
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/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol hides /usr/share/emacs/30.0.50/lisp/org/ol
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-w3m hides /usr/share/emacs/30.0.50/lisp/org/ol-w3m
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-rmail hides /usr/share/emacs/30.0.50/lisp/org/ol-rmail
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-mhe hides /usr/share/emacs/30.0.50/lisp/org/ol-mhe
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-man hides /usr/share/emacs/30.0.50/lisp/org/ol-man
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-irc hides /usr/share/emacs/30.0.50/lisp/org/ol-irc
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-info hides /usr/share/emacs/30.0.50/lisp/org/ol-info
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-gnus hides /usr/share/emacs/30.0.50/lisp/org/ol-gnus
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-eww hides /usr/share/emacs/30.0.50/lisp/org/ol-eww
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-eshell hides /usr/share/emacs/30.0.50/lisp/org/ol-eshell
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-doi hides /usr/share/emacs/30.0.50/lisp/org/ol-doi
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-docview hides /usr/share/emacs/30.0.50/lisp/org/ol-docview
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-bibtex hides /usr/share/emacs/30.0.50/lisp/org/ol-bibtex
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ol-bbdb hides /usr/share/emacs/30.0.50/lisp/org/ol-bbdb
/home/bidar/.local/private/etc/emacs/lib/org/lisp/oc hides /usr/share/emacs/30.0.50/lisp/org/oc
/home/bidar/.local/private/etc/emacs/lib/org/lisp/oc-natbib hides /usr/share/emacs/30.0.50/lisp/org/oc-natbib
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/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-table hides /usr/share/emacs/30.0.50/lisp/org/ob-table
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/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-shell hides /usr/share/emacs/30.0.50/lisp/org/ob-shell
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-sed hides /usr/share/emacs/30.0.50/lisp/org/ob-sed
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-screen hides /usr/share/emacs/30.0.50/lisp/org/ob-screen
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-scheme hides /usr/share/emacs/30.0.50/lisp/org/ob-scheme
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/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-ruby hides /usr/share/emacs/30.0.50/lisp/org/ob-ruby
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-ref hides /usr/share/emacs/30.0.50/lisp/org/ob-ref
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-processing hides /usr/share/emacs/30.0.50/lisp/org/ob-processing
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-plantuml hides /usr/share/emacs/30.0.50/lisp/org/ob-plantuml
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-perl hides /usr/share/emacs/30.0.50/lisp/org/ob-perl
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-org hides /usr/share/emacs/30.0.50/lisp/org/ob-org
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-octave hides /usr/share/emacs/30.0.50/lisp/org/ob-octave
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-ocaml hides /usr/share/emacs/30.0.50/lisp/org/ob-ocaml
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-maxima hides /usr/share/emacs/30.0.50/lisp/org/ob-maxima
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-matlab hides /usr/share/emacs/30.0.50/lisp/org/ob-matlab
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-makefile hides /usr/share/emacs/30.0.50/lisp/org/ob-makefile
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-lob hides /usr/share/emacs/30.0.50/lisp/org/ob-lob
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-lisp hides /usr/share/emacs/30.0.50/lisp/org/ob-lisp
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-lilypond hides /usr/share/emacs/30.0.50/lisp/org/ob-lilypond
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-latex hides /usr/share/emacs/30.0.50/lisp/org/ob-latex
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-julia hides /usr/share/emacs/30.0.50/lisp/org/ob-julia
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-js hides /usr/share/emacs/30.0.50/lisp/org/ob-js
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-java hides /usr/share/emacs/30.0.50/lisp/org/ob-java
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-haskell hides /usr/share/emacs/30.0.50/lisp/org/ob-haskell
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-groovy hides /usr/share/emacs/30.0.50/lisp/org/ob-groovy
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-gnuplot hides /usr/share/emacs/30.0.50/lisp/org/ob-gnuplot
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-fortran hides /usr/share/emacs/30.0.50/lisp/org/ob-fortran
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-forth hides /usr/share/emacs/30.0.50/lisp/org/ob-forth
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-exp hides /usr/share/emacs/30.0.50/lisp/org/ob-exp
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-eval hides /usr/share/emacs/30.0.50/lisp/org/ob-eval
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-eshell hides /usr/share/emacs/30.0.50/lisp/org/ob-eshell
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-emacs-lisp hides /usr/share/emacs/30.0.50/lisp/org/ob-emacs-lisp
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-dot hides /usr/share/emacs/30.0.50/lisp/org/ob-dot
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-ditaa hides /usr/share/emacs/30.0.50/lisp/org/ob-ditaa
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-css hides /usr/share/emacs/30.0.50/lisp/org/ob-css
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-core hides /usr/share/emacs/30.0.50/lisp/org/ob-core
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-comint hides /usr/share/emacs/30.0.50/lisp/org/ob-comint
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-clojure hides /usr/share/emacs/30.0.50/lisp/org/ob-clojure
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-calc hides /usr/share/emacs/30.0.50/lisp/org/ob-calc
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-awk hides /usr/share/emacs/30.0.50/lisp/org/ob-awk
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-R hides /usr/share/emacs/30.0.50/lisp/org/ob-R
/home/bidar/.local/private/etc/emacs/lib/org/lisp/ob-C hides /usr/share/emacs/30.0.50/lisp/org/ob-C
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-loaddefs hides /usr/share/emacs/30.0.50/lisp/org/org-loaddefs
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-compat hides /usr/share/emacs/30.0.50/lisp/org/org-compat
/home/bidar/.local/private/etc/emacs/lib/org/lisp/org-macs hides /usr/share/emacs/30.0.50/lisp/org/org-macs

Features:
(shadow bbdb-message gnus-alias autocrypt-message emacsbug
octave-expansions octave ace-window avy lsp-completion lsp-diagnostics
lsp-modeline dap-mouse lsp-ui lsp-ui-flycheck lsp-ui-doc xwidget
lsp-ui-imenu lsp-ui-peek lsp-ui-sideline lsp-ui-util dap-lldb dap-ui
gdb-mi gud bui bui-list bui-info bui-entry bui-core bui-history
bui-button bui-utils lsp-lens dap-mode dap-tasks dap-launch lsp-docker
posframe dap-overlays ccls ccls-member-hierarchy
ccls-inheritance-hierarchy ccls-call-hierarchy ccls-tree ccls-code-lens
ccls-semantic-highlight ccls-common lsp-treemacs lsp-treemacs-generic
lsp-treemacs-themes treemacs-treelib lsp-mode lsp-protocol yasnippet
spinner git-rebase org-clock-helpers org-clock-helpers-autoloads
smart-region multiple-cursors mc-separate-operations
rectangular-region-mode mc-mark-pop mc-edit-lines
mc-hide-unmatched-lines-mode mc-mark-more html-mode-expansions sgml-mode
mc-cycle-cursors multiple-cursors-core rect expand-region
yaml-mode-expansions subword-mode-expansions cperl-mode-expansions
text-mode-expansions cc-mode-expansions the-org-mode-expansions
python-el-fgallina-expansions js-mode-expansions er-basic-expansions
expand-region-core expand-region-custom elfeed-link finder-inf
helm-dired-history helm-dired-history-autoloads gitconfig-mode shortdoc
display-line-numbers two-column helm-descbinds tabify cl-print
helm-org-rifle company-shell flow-fill w3m-form w3m-symbol w3m w3m-hist
bookmark-w3m w3m-ems w3m-favicon w3m-image w3m-fb tab-line w3m-proc
w3m-util helm-command dired-open help-fns mastodon-media
mastodon-profile mastodon-auth mastodon-client mastodon mastodon-search
mastodon-toot persist mastodon-http request magit-subtree orgit-forge
orgit helm-ls-git magit-extras circe-lagmon char-fold misearch
multi-isearch emacsql-sqlite-builtin sqlite org-duration ietf-drums-date
mule-util gnus-gravatar gravatar dns url-cache smiley gnus-cite
message-view-patch mm-archive mail-extr textsec uni-scripts idna-mapping
ucs-normalize uni-confusable textsec-check qp gnus-async gnus-bcklg
bbdb-gnus-aux gnus-ml gnus-demon gnus-topic autocrypt-gnus nndraft nnmh
utf-7 epa-file network-stream nnfolder bbdb-gnus bbdb-mua nnnil winner
tramp-archive tramp-gvfs tramp-cache zeroconf helm-x-files
helm-for-files helm-external view plstore image-file image-converter
vc-dir js c-ts-common cap-words superword subword gitignore-mode
pdf-occur tablist tablist-filter semantic/wisent/comp semantic/wisent
semantic/wisent/wisent semantic/util-modes semantic/util semantic
semantic/tag semantic/lex semantic/fw mode-local cedet pdf-isearch
pdf-misc cus-start whole-line-or-region pdf-tools pdf-view pdf-cache
pdf-info pdf-util pdf-macs dired-collapse treemacs-icons-dired
treemacs-nerd-icons treemacs-magit treemacs treemacs-header-line
treemacs-compatibility treemacs-mode treemacs-bookmarks treemacs-tags
treemacs-interface treemacs-persistence treemacs-filewatch-mode
treemacs-follow-mode treemacs-rendering treemacs-annotations
treemacs-async treemacs-workspaces treemacs-dom treemacs-visuals
treemacs-fringe-indicator forge-list forge-commands forge-semi
forge-bitbucket buck forge-gogs gogs forge-gitea gtea forge-gitlab glab
forge-github ghub-graphql treepy gsexp ghub forge-notify forge-revnote
forge-pullreq forge-issue forge-topic yaml forge-post markdown-mode
forge-repo forge forge-core forge-db magit-popup magit-bookmark
magit-submodule magit-blame magit-stash magit-reflog magit-bisect
magit-push magit-pull magit-fetch magit-clone magit-remote magit-commit
magit-sequence magit-notes magit-worktree magit-tag magit-merge
magit-branch magit-reset magit-files magit-refs magit-status magit
magit-repos magit-apply magit-wip magit-log magit-diff smerge-mode diff
magit-core magit-autorevert magit-margin magit-transient magit-process
magit-mode time-stamp pulse rpm-spec-mode generic-x atomic-chrome
websocket minions back-button smartrep helm-projectile recentf
tree-widget autorevert savehist org-edit-indirect edit-indirect org-bug
bug-search bug-comment-mode bug-backend-bz-rpc bug-list-mode bug-mode
bug-format bug-rpc bug-debug bug-search-common bug-common-functions
bug-persistent-data bug-custom elfeed-autotag elfeed-score
elfeed-score-maint elfeed-score-scoring elfeed-score-serde
elfeed-score-rule-stats elfeed-score-rules elfeed-score-log elfeed-tube
elfeed-tube-utils aio elfeed-protocol-owncloud elfeed-protocol
elfeed-protocol-common elfeed-show elfeed-search rainbow-delimiters
ligature symbol-overlay hideshow vc-hg vc-bzr vc-src vc-sccs vc-svn
vc-cvs vc-rcs log-view bug-reference elfeed-csv elfeed elfeed-curl
elfeed-log elfeed-db elfeed-lib xml-query emms-i18n emms-history
emms-score emms-stream-info emms-metaplaylist-mode emms-bookmarks
emms-cue emms-mode-line-icon emms-browser sort emms-volume
emms-volume-sndioctl emms-volume-mixerctl emms-volume-pulse
emms-volume-amixer emms-playlist-sort emms-last-played emms-player-mpd
emms-playing-time emms-lyrics emms-url emms-player-simple emms-streams
emms-show-all emms-tag-editor emms-tag-tracktag emms-info-mp3info
emms-mark emms-mode-line emms-cache emms-playlist-mode emms-info-native
emms-info-native-spc emms-info-native-mp3 emms-info-native-ogg
emms-info-native-opus emms-info-native-flac emms-info-native-vorbis
emms-info-libtag emms-info emms-later-do emms-source-playlist
emms-source-file locate emms emms-compat autocrypt gnus-icalendar
org-capture smtpmail-async smtpmail gnus-agent gnus-srvr gnus-score
score-mode nnvirtual gnus-msg nntp gnus-cache gnus-desktop-notify
khardel yaml-mode mastodon-async mastodon-tl mpv tq mastodon-iso
lui-track company-emoji company-emoji-list helm-circe
circe-notifications circe-display-images circe-color-nicks circe
lui-irc-colors irc lcs lui-logging lui-format lui tracking shorten
flyspell circe-compat bbdb-vcard bbdb-com bbdb-vcard-vcard21 bbdb
bbdb-site timezone ical2org org-modern org-caldav icalendar url-dav
url-http url-auth url-gw nsm ox-koma-letter ox-extra org-pomodoro alert
notifications org-timer org-expiry ol-man org-clock org-protocol
ob-sqlite ob-sql ob-shell ob-python ob-plantuml ob-org ob-octave ob-lua
ob-js ob-gnuplot ox-odt rng-loc rng-uri rng-parse rng-match rng-dt
rng-util rng-pttrn nxml-parse nxml-ns nxml-enc xmltok nxml-util ox-latex
ox-icalendar org-super-agenda ts org-habit cdlatex reftex
reftex-loaddefs reftex-vars texmathp org-appear ws-butler selected jinx
oc-basic ol-eww eww url-queue mm-url ol-rmail ol-mhe ol-irc ol-info
ol-gnus nnselect gnus-art mm-uu mml2015 mm-view mml-smime smime gnutls
dig ol-docview doc-view ol-bibtex bibtex ol-bbdb ol-w3m ol-doi
org-link-doi cal-china lunar solar cal-dst cal-bahai cal-islam
cal-hebrew holidays holiday-loaddefs vim-modeline appt org-agenda
ox-html table ox-ascii ox-publish ox org-element org-persist org-id
org-refile avl-tree ob-dot ob-ditaa ob-clojure ob-C outshine
outshine-org-cmds outorg smartparens-org smartparens-text smartparens
loadhist org-archive-subtree-hierarchy org-archive org ob ob-tangle
ob-ref ob-lob ob-table ob-exp org-macro org-src ob-comint org-pcomplete
org-list org-footnote org-faces org-entities ob-emacs-lisp ob-core
ob-eval org-cycle org-table ol org-fold org-fold-core org-keys oc
org-element-ast org-loaddefs gnus-sum shr pixel-fill kinsoku url-file
svg dom gnus-group gnus-undo gnus-start gnus-dbus dbus goto-addr
gnus-cloud nnimap nnmail mail-source utf7 nnoo gnus-spec gnus-int
gnus-range gnus-win gnus nnheader range org-version org-compat org-macs
noutline outline perl-completion woman man dabbrev cperl-mode facemenu
helm-elisp helm-eval edebug debug backtrace cl cc-mode cc-fonts cc-guess
cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs ggtags
ewoc flycheck-color-mode-line flycheck jka-compr meson-mode
bitbake-modes bitbake generic autoinsert conf-bitbake-mode conf-mode
bitbake-ff find-file bitbake-mmm sh-script smie executable mmm-mode
mmm-univ mmm-class mmm-region mmm-auto mmm-vars mmm-utils mmm-compat
bitbake-functions bitbake-compat python treesit xterm-color vc-osc vc
magit-libgit libgit libegit2 git-commit magit-git magit-base which-func
imenu vc-git diff-mode vc-dispatcher magit-section benchmark
cursor-sensor crm transient log-edit message sendmail yank-media puny
rfc822 mml mml-sec epa epg rfc6068 epg-config gnus-util mm-decode
mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 mm-util
ietf-drums mail-prsvr mailabbrev mail-utils gmm-utils mailheader
pcvs-util add-log diary-lib diary-loaddefs cal-menu calendar
cal-loaddefs midnight vlf-setup multi-vterm company-yasnippet vterm
face-remap term disp-table ehelp vterm-module term/xterm xterm
projectile skeleton ibuf-macs ibuf-ext ibuffer ibuffer-loaddefs
company-oddmuse company-keywords make-mode company-etags etags fileloop
generator xref project company-gtags company-dabbrev-code
company-dabbrev company-files company-clang company-capf company-cmake
company-semantic company-template company-bbdb company elec-pair
editorconfig editorconfig-core editorconfig-core-handle
editorconfig-fnmatch package url-handlers hydra lv frames-only-mode
windmove i3-integration i3 bindat marginalia which-key dired-ranger
dired-avfs dired-rainbow dired-filter dired-hacks-utils dired-async
dired-du find-dired wdired helm-icons treemacs-icons treemacs-scope
treemacs-themes treemacs-core-utils treemacs-macros treemacs-logging
treemacs-customization pfuture inline hl-line treemacs-faces
helm-bookmark helm-net browse-url xml url url-proxy url-privacy
url-expand url-methods url-history url-cookie url-domsuf url-util
mailcap helm-adaptive helm-info bookmark helm-mode helm-misc helm-files
image-dired image-dired-tags image-dired-external image-dired-util
image-mode exif filenotify dired-x dired-aux dired dired-loaddefs ffap
tramp trampver tramp-integration files-x tramp-message tramp-compat xdg
parse-time iso8601 time-date tramp-loaddefs helm-buffers all-the-icons
all-the-icons-faces data-material data-weathericons data-octicons
data-fileicons data-faicons data-alltheicons helm-occur helm-tags
helm-locate helm-grep wgrep-helm wgrep grep compile text-property-search
helm-regexp format-spec helm-utils helm-help helm-types so-long
cursor-chg doom-modeline doom-modeline-segments let-alist
doom-modeline-env doom-modeline-core shrink-path f s nerd-icons
nerd-icons-faces nerd-icons-data nerd-icons-data-mdicon
nerd-icons-data-flicon nerd-icons-data-codicon nerd-icons-data-devicon
nerd-icons-data-sucicon nerd-icons-data-wicon nerd-icons-data-faicon
nerd-icons-data-powerline nerd-icons-data-octicon
nerd-icons-data-pomicon nerd-icons-data-ipsicon mode-icons emojify
advice apropos tar-mode arc-mode archive-mode ht dash color
modus-vivendi-theme modus-themes helm-pass thingatpt password-store
with-editor shell pcomplete comint ansi-osc ansi-color ring server helm
helm-global-bindings helm-easymenu helm-core async-bytecomp helm-source
helm-multi-match helm-lib async auth-source-pass url-parse url-vars
auth-source password-cache cus-edit pp cus-load printing ps-print
ps-print-loaddefs lpr desktop frameset edmacro kmacro saveplace delsel
no-littering epkg-elpa json map epkg-utils epkg-list epkg-desc wid-edit
find-func epkg closql emacsql-sqlite-common emacsql emacsql-compiler
eieio-base llama compat use-package use-package-ensure
use-package-delight use-package-diminish use-package-bind-key bind-key
easy-mmode use-package-core zop-to-char-autoloads yasnippet-autoloads
yaml-mode-autoloads yaml-autoloads xterm-color-autoloads
ws-butler-autoloads with-editor-autoloads whole-line-or-region-autoloads
which-key-autoloads wgrep-autoloads websocket-autoloads
web-mode-autoloads w3m-autoloads vlf-autoloads vim-modeline-autoloads
vc-osc-autoloads uuidgen-autoloads use-package-autoloads ts-autoloads
treepy-autoloads treemacs-nerd-icons-autoloads treemacs-autoloads
transient-autoloads toml-mode-autoloads systemd-autoloads
symbol-overlay-autoloads swiper-helm-autoloads ssh-config-mode-autoloads
spinner-autoloads smartrep-autoloads smartparens-autoloads
smart-region-autoloads skewer-mode-autoloads simple-httpd-autoloads
shrink-path-autoloads selected-autoloads s-autoloads
rpm-spec-mode-autoloads rich-minority-autoloads request-autoloads
rainbow-delimiters-autoloads qml-mode-autoloads pythonic-autoloads
projectile-autoloads posframe-autoloads pos-tip-autoloads
popup-autoloads plantuml-mode-autoloads pkgbuild-mode-autoloads
piper-autoloads pfuture-autoloads perspective-autoloads
persp-mode-autoloads persist-autoloads password-store-autoloads
pass-autoloads outshine-autoloads outorg-autoloads orgit-forge-autoloads
orgit-autoloads org-vcard-autoloads org-tree-slide-autoloads
org-super-agenda-autoloads org-pomodoro-autoloads org-modern-autoloads
org-edit-indirect-autoloads org-contrib-autoloads org-contacts-autoloads
org-caldav-autoloads org-appear-autoloads org-autoloads
no-littering-autoloads nginx-mode-autoloads nerd-icons-ibuffer-autoloads
nerd-icons-autoloads navi-mode-autoloads multiple-cursors-autoloads
multi-vterm-autoloads mpv-autoloads move-text-autoloads
modus-themes-autoloads mode-icons-autoloads mmm-mode-autoloads
minions-autoloads message-x-autoloads message-view-patch-autoloads
message-attachment-reminder-autoloads meson-mode-autoloads
mastodon-autoloads markdown-mode-autoloads marginalia-autoloads
magit-popup-autoloads magit-autoloads lua-mode-autoloads
lsp-ui-autoloads lsp-treemacs-autoloads lsp-mode-autoloads
lsp-docker-autoloads logview-autoloads llama-autoloads lisp-autoloads
link-hint-autoloads ligature-autoloads levenshtein-autoloads
khardel-autoloads js2-mode-autoloads journalctl-autoloads
jira-markup-mode-autoloads ivy-autoloads irony-autoloads
ir-black-theme-autoloads iedit-autoloads ical2org-autoloads
ibuffer-projectile-autoloads i3wm-config-mode-autoloads i3-autoloads
hydra-autoloads htmlize-autoloads ht-autoloads
highlight-indent-guides-autoloads helm-projectile-autoloads
helm-pass-autoloads helm-org-rifle-autoloads helm-make-autoloads
helm-ls-git-autoloads helm-icons-autoloads helm-ext-autoloads
helm-emms-autoloads helm-descbinds-autoloads helm-circe-autoloads
helm-autoloads guess-language-autoloads grep-context-autoloads
goto-chg-autoloads gnus-recent-autoloads gnus-notes-autoloads
gnus-desktop-notify-autoloads gnus-alias-autoloads gitconfig-autoloads
git-modes-autoloads ghub-autoloads ggtags-autoloads
frames-only-mode-autoloads forge-autoloads
flycheck-color-mode-line-autoloads flycheck-autoloads fedi-autoloads
f-autoloads extmap-autoloads expand-region-autoloads
evil-multiedit-autoloads evil-autoloads epkg-autoloads emojify-autoloads
emacsql-autoloads elixir-mode-autoloads elfeed-tube-autoloads
elfeed-summary-autoloads elfeed-score-autoloads
elfeed-protocol-autoloads elfeed-autotag-autoloads elfeed-autoloads
el-mock-autoloads eimp-autoloads editorconfig-autoloads
edit-indirect-autoloads dumb-jump-autoloads doom-modeline-autoloads
dired-rsync-autoloads dired-hacks-autoloads dired-du-autoloads
devhelp-autoloads deferred-autoloads default-text-scale-autoloads
debbugs-autoloads datetime-autoloads dash-autoloads dap-mode-autoloads
cursor-chg-autoloads crux-autoloads copy-as-format-autoloads
compat-autoloads company-shell-autoloads company-quickhelp-autoloads
company-nginx-autoloads company-lua-autoloads company-irony-autoloads
company-emoji-autoloads company-anaconda-autoloads company-autoloads
code-review-autoloads cmake-mode-autoloads cmake-font-lock-autoloads
closql-autoloads circe-notifications-autoloads circe-autoloads
cdlatex-autoloads ccls-autoloads buttercup-autoloads bui-autoloads
bug-mode-autoloads borg-autoloads bitbake-modes-autoloads
bbdb-vcard-autoloads bbdb-loaddefs back-button-autoloads avy-autoloads
autocrypt-autoloads auto-compile-autoloads atomic-chrome-autoloads
async-autoloads anaconda-mode-autoloads all-the-icons-autoloads
alert-autoloads aio-autoloads ag-autoloads ace-window-autoloads
ace-link-autoloads a-autoloads borg derived eieio byte-opt eieio-core
loaddefs-gen generate-lisp-file lisp-mnt radix-tree pcase info comp
comp-cstr warnings icons subr-x rx cl-seq cl-macs gv cl-extra help-mode
cl-loaddefs cl-lib bytecomp byte-compile preview-latex auctex tex-site
ispell rmc iso-transl tooltip cconv eldoc paren electric uniquify
ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/pgtk-win
pgtk-win term/common-win pgtk-dnd touch-screen tool-bar dnd fontset
image regexp-opt fringe tabulated-list replace newcomment text-mode
lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch
easymenu timer select scroll-bar mouse jit-lock font-lock syntax
font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic
indonesian philippine cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
composite emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs
theme-loaddefs faces cus-face macroexp files window text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads xwidget-internal dbusbind
inotify dynamic-setting system-font-setting font-render-setting cairo
gtk pgtk lcms2 multi-tty move-toolbar make-network-process
native-compile emacs)

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 (strings 32 1895822 122991) (string-bytes 1 144336637)
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bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Björn Bidar <bjorn.bidar@thaodan.de> writes:

> I noticed when investigating why drag and drop wasn't working
> in my setup that pgtk doesn't define `x-begin-drag' but defines
> functions for drag and drop support.
> That x-begin-drag isn't present breaks `dnd-begin-text-drag` and friend.
>
> 1. Build Emacs with at least --with-pgtk
> 2. Call `dnd-begin-text-drag'
> 3. Error

As I've explained elsewhere, GTK's limitations and corner-cutting poses
special difficulties for drag-and-drop implementations, for which reason
I decided against implementing that for the PGTK build myself.  Patches
will, as ever, be appreciated.

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Eli Zaretskii]

> Cc: 69662@debbugs.gnu.org
> Date: Sat, 09 Mar 2024 18:55:34 +0800
> From:  Po Lu via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> Björn Bidar <bjorn.bidar@thaodan.de> writes:
> 
> > I noticed when investigating why drag and drop wasn't working
> > in my setup that pgtk doesn't define `x-begin-drag' but defines
> > functions for drag and drop support.
> > That x-begin-drag isn't present breaks `dnd-begin-text-drag` and friend.
> >
> > 1. Build Emacs with at least --with-pgtk
> > 2. Call `dnd-begin-text-drag'
> > 3. Error
> 
> As I've explained elsewhere, GTK's limitations and corner-cutting poses
> special difficulties for drag-and-drop implementations, for which reason
> I decided against implementing that for the PGTK build myself.  Patches
> will, as ever, be appreciated.

What does this mean in practice, though?  Does it mean drag-and-drop
doesn't work at all in the PGTK builds?  Or only some aspects of that
don't work?  We should at least document the limitations.

Thanks.

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Björn Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Eli Zaretskii <eliz@gnu.org> writes:

>> Cc: 69662@debbugs.gnu.org
>> Date: Sat, 09 Mar 2024 18:55:34 +0800
>> From:  Po Lu via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>> 
>> Björn Bidar <bjorn.bidar@thaodan.de> writes:
>> 
>> > I noticed when investigating why drag and drop wasn't working
>> > in my setup that pgtk doesn't define `x-begin-drag' but defines
>> > functions for drag and drop support.
>> > That x-begin-drag isn't present breaks `dnd-begin-text-drag` and friend.
>> >
>> > 1. Build Emacs with at least --with-pgtk
>> > 2. Call `dnd-begin-text-drag'
>> > 3. Error
>> 
>> As I've explained elsewhere, GTK's limitations and corner-cutting poses
>> special difficulties for drag-and-drop implementations, for which reason
>> I decided against implementing that for the PGTK build myself.  Patches
>> will, as ever, be appreciated.
>
> What does this mean in practice, though?  Does it mean drag-and-drop
> doesn't work at all in the PGTK builds?  Or only some aspects of that
> don't work?  We should at least document the limitations.
>
> Thanks.

I also wonder why does it not work in Emacs while other GTK applications
don't have the same issue?

There must be ways around the issue.

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Björn Bidar <bjorn.bidar@thaodan.de> writes:

> I also wonder why does it not work in Emacs while other GTK applications
> don't have the same issue?

Our standards are higher than those of other applications, because of
the detailed control our drag-and-drop primitives afford to Lisp.  To
achieve this, we expect GTK to meet the perfectly reasonable standard
that certain functions must function in the manner detailed by their
documentation, yet the GDK Wayland backend implements them only to the
degree of completeness required by GTK's useless drag-and-drop
abstraction, again demonstrating utter disregard for programs not
privileged enough to receive its developers' tireless attentions.

Asking for a fix is an exercise in futility; whenever they are
approached to this effect, their attitude alternates between being
dismissive and being confrontational, but never admitting that they
might be at fault.  E.g. consider the recent fiasco over font hinting,
where they continued to insist on their faultlessness despite making a
release to address what was otherwise universally seen as an issue.

> There must be ways around the issue.

It's only that I'm not volunteering to find them with a band of
unrepentant megalomaniacs waiting to frustrate me at every stage of the
process.  Patches welcome, as always, and thanks in advance.

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  69662@debbugs.gnu.org
> Date: Thu, 14 Mar 2024 21:52:25 +0800
> 
> > There must be ways around the issue.
> 
> It's only that I'm not volunteering to find them with a band of
> unrepentant megalomaniacs waiting to frustrate me at every stage of the
> process.  Patches welcome, as always, and thanks in advance.

Please also answer my question up-thread:

> What does this mean in practice, though?  Does it mean drag-and-drop
> doesn't work at all in the PGTK builds?  Or only some aspects of that
> don't work?  We should at least document the limitations.

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Eli Zaretskii <eliz@gnu.org> writes:

> What does this mean in practice, though?  Does it mean drag-and-drop
> doesn't work at all in the PGTK builds?  Or only some aspects of that
> don't work?  We should at least document the limitations.

The implication is that it's not possible to drag files or text _from_
Emacs into other programs, which is documented in the doc strings of the
relevant minor modes and functions.  Sorry I overlooked this question.

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: bjorn.bidar@thaodan.de,  69662@debbugs.gnu.org
> Date: Fri, 15 Mar 2024 20:45:52 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > What does this mean in practice, though?  Does it mean drag-and-drop
> > doesn't work at all in the PGTK builds?  Or only some aspects of that
> > don't work?  We should at least document the limitations.
> 
> The implication is that it's not possible to drag files or text _from_
> Emacs into other programs, which is documented in the doc strings of the
> relevant minor modes and functions.

Which doc strings mention that?

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Eli Zaretskii <eliz@gnu.org> writes:

> Which doc strings mention that?

dired-mouse-drag-files mentions that:

This feature is supported only on X Windows, Haiku, and Nextstep (macOS
or GNUstep).

and mouse-drag-mode-line-buffer:

This option is only supported on X, Haiku and Nextstep (GNUstep or
macOS).

for example.  (elisp)Drag and Drop also features this disclaimer:

   It is also possible to drag content from Emacs to other programs when
   this is supported by the current window-system.

bug#69662: 30.0.50; PGTK Window system supports drag-and-drop but doesn't define x-begin-drag

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: bjorn.bidar@thaodan.de,  69662@debbugs.gnu.org
> Date: Fri, 15 Mar 2024 21:24:57 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Which doc strings mention that?
> 
> dired-mouse-drag-files mentions that:
> 
> This feature is supported only on X Windows, Haiku, and Nextstep (macOS
> or GNUstep).
> 
> and mouse-drag-mode-line-buffer:
> 
> This option is only supported on X, Haiku and Nextstep (GNUstep or
> macOS).
> 
> for example.  (elisp)Drag and Drop also features this disclaimer:
> 
>    It is also possible to drag content from Emacs to other programs when
>    this is supported by the current window-system.

Thanks, I added the same caveat to a few more functions' doc strings.